I'm very skeptical of an air sign that advertises "balloon" tires or any specific tires for that matter. Is air made for balloon tires different from the air put in other types of tires? Seems a bit "gimmicky" to me.......

That four inch or so threaded pipe ,the same on all three seems a bit coincidental ,to me. When they were the same on the first two, I thought hmm. But all three?? Maybe I'll learn something here but now I'm more skeptical.

Look at the wear and edges close on the sign, I have only seen that "patina" if you want to call it, on signs that have been buried and dug up. And we all know there is usually more than one found when signs dug up.Just an opinion but I believe you can't replicate that patina no matter what you use.